16680822503 has 4 divisors (see below), whose sum is σ = 16692041760. Its totient is φ = 16669603248.

The previous prime is 16680822469. The next prime is 16680822511. The reversal of 16680822503 is 30522808661.

16680822503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16680822503 - 2⁶ = 16680822439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16680822583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5607398 + ... + 5610371.

It is an arithmetic number, because the mean of its divisors is an integer number (4173010440).

Almost surely, 2^16680822503 is an apocalyptic number.

16680822503 is a deficient number, since it is larger than the sum of its proper divisors (11219257).

16680822503 is a wasteful number, since it uses less digits than its factorization.

16680822503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11219256.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 16680822503 in words is "sixteen billion, six hundred eighty million, eight hundred twenty-two thousand, five hundred three".